ipnlocal: don't pause the controlclient until we get at least one netmap.

Without this, macOS would fail to display its menu state correctly if you
started it while !WantRunning. It relies on the netmap in order to show
the logged-in username.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>

control/controlclient/auto.go

@@ -129,6 +129,7 @@ func (c *Auto) SetPaused(paused bool) {
 	if paused == c.paused {
 		return
 	}
+	c.logf("setPaused(%v)", paused)
 	c.paused = paused
 	if paused {
 		// Only cancel the map routine. (The auth routine isn't expensive
@@ -267,7 +268,7 @@ func (c *Auto) authRoutine() {
 		if goal != nil {
 			c.logf("authRoutine: %s; wantLoggedIn=%v", c.state, goal.wantLoggedIn)
 		} else {
-			c.logf("authRoutine: %s; goal=nil", c.state)
+			c.logf("authRoutine: %s; goal=nil paused=%v", c.state, c.paused)
 		}
 		c.mu.Unlock()